Datasheet Texas Instruments LM1771USD/NOPB — 数据表
制造商 | Texas Instruments |
系列 | LM1771 |
零件号 | LM1771USD/NOPB |
具有精确使能且无外部补偿的低压同步降压控制器6-WSON -40至125
数据表
LM1771 Low-Voltage Synchronous Buck Controller With Precision Enable and No External Compensation datasheet
PDF, 1.3 Mb, 修订版: D, 档案已发布: Jan 8, 2016
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价格
状态
Lifecycle Status | Active (Recommended for new designs) |
Manufacture's Sample Availability | Yes |
打包
Pin | 6 |
Package Type | NGG |
Industry STD Term | WSON |
JEDEC Code | S-PDSO-N |
Package QTY | 1000 |
Carrier | SMALL T&R |
Device Marking | 1771U |
Width (mm) | 3 |
Length (mm) | 3 |
Thickness (mm) | .8 |
Pitch (mm) | .95 |
Max Height (mm) | .8 |
Mechanical Data | 下载 |
参数化
Control Mode | Constant on-time (COT) |
Duty Cycle(Max) | 98 % |
Iout(Max) | 6 A |
Iq(Typ) | 0.4 mA |
Number of Phases | 1 |
Operating Temperature Range | -40 to 125 C |
Package Group | WSON |
Rating | Catalog |
Regulated Outputs | 1 |
Special Features | Enable |
Switching Frequency(Max) | 2000 kHz |
Switching Frequency(Min) | 500 kHz |
Type | Controller |
Vin(Max) | 5.5 V |
Vin(Min) | 2.8 V |
Vout(Max) | 4.5 V |
Vout(Min) | 0.8 V |
生态计划
RoHS | Compliant |
设计套件和评估模块
- Evaluation Modules & Boards: LM1771EVAL
Low-Voltage Synchronous Buck Controller with Precision Enable and No External Compensation
Lifecycle Status: Active (Recommended for new designs)
应用须知
- LM1771 and LM3880 Based FPGA Power Supply Reference Design (Rev. A)PDF, 103 Kb, 修订版: A, 档案已发布: May 5, 2013
This application note discusses the Virtex-5 FPGA power supply prerequisites in terms of the multiplevoltage rail and current level requirements, output sequencing, and startup characteristics. - Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A)PDF, 178 Kb, 修订版: A, 档案已发布: Apr 23, 2013
Of all the voltage regulator control strategies ever devised, the hysteretic regulator is probably about thesimplest. This control methodology simply turns a switch on when the output voltage is below a referenceand turns the switch off when the output rises to a slightly higher reference. The output ripple is thereforea direct function of the difference between the upper and lower reference
模型线
系列: LM1771 (6)
- LM1771SMM/NOPB LM1771SSD/NOPB LM1771TMM/NOPB LM1771TSD/NOPB LM1771UMM/NOPB LM1771USD/NOPB
制造商分类
- Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Down (Buck) > Buck Controller (External Switch)